Acetylene-gas generator.



M. S. MISHLBR.

AGETYLENB GAS GENERATOR. APPLIOATION FILED MAY zo, 1910.

Pafhllted.v 0G13. 4, 1910.

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MISHLBR.

AGETYLBNE GAS GENERATOR.

APPLIUATION- FILED MAY 2o, 1910.

Patented 0013.4,1910- 3 SHEETS-SHEET 2.

THE Nomus PETER: cal, wAsmNcmN, 1: c.

M. S. MISHLER.

AGETYLBNE GAS GENERATOR. APPLICATION mim) un 2o, 1910.

Patented 0011.4,1910- 3 BEBER-SHEET 3.

@Hof/umg THE Nans-1s Pfrmzs co., WASHINGTON, n4 c.

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i 'l' TN ACETYLENE-G-AS GENERATOR.

To all whom it may concern:

Be it known that I, MELVIN S. MIsHLER, a citizen of the United States ofAmerica, residing at Little River, in the county of Dade and State ofFlorida, have invented new and useful Improvements in Acetylene- GasGenerators, of which the following is a specification.

This invention relates to acetylene gas generators, and the object ofthe invention is to produce a device of this class which shall be simplein construction, efficient in operation, in which the operation shall beto a large extent continuous and automatic, and in which the charges ofcarbid may be readily renewed or replaced whenever necessary.

Vit-h these and other ends in View which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claims.

In the accompanying drawing has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifica.- tions within the scope ofthe invention may be resorted to when desired.

In the drawings, Figure 1 is a vertical sectional view of a deviceconstructed in accordance with the invention, the position shown beingthe one occupied when one of the carbid charges is practicallyexhausted, dotted lines being shown to indicate the position when thetank cont-aining the exhaust charge is raised for the purpose ofrenewing the charge. Fig. 2 is a vertical sectional view showing thedevice in active operation. Fig. 3 is a sectional view taken on the line3 3 in Fig. 1. Fig. L1 is a horizontal sectional view taken on the line4:-4 in Fig. 1. Fig. 5 is a vertical sectional detail view illustratinga slight modification.

Corresponding parts in the several figures are denoted by likecharacters of reference.

1n the construction of the improved generator there is employed a tank1, oreferably of sheet metal of cylindrical shape, sa id tank beingreinforced adjacent to its upper edge by a cast iron rim 2. Suitablyconnected with said tank, preferably at diametrically Specification ofLetters Patent.

Application led May 20, 1910.

Patented Oct. d, 1910.

Serial No. 562,467.

opposite sides, or approximately so, are U-shaped pipes A, B, the bendsof which 3 and 4 extend through the wall of the tank adjacent to thebottom thereof. The limbs 5 and 6 of these U-shaped pipes which areinside the tank extend nearly to the upper edge thereof. The limbs 7 andS which'are located outside of the tank are to be connected respectivelywith the burners of the system and with the atmosphere. The pipe S,however, may, if preferred, be connected with a storage tank to avoidwaste of gas.

The pipes A and B are provided with pet cocks 9, 10 for convenience indraining from said pipes any water that may accumulate therein owing toevaporation and condensation. The inverted vessel or bell C whichoperates in the tank 1 is of such shape and dimensions as to be guidedfreely within said tank, the walls of the bell being slightly spacedfrom the walls of the tank. The top plate 11 of the bell is equippedwith tubes D, D2 of relatively large diameter extending therethrough,said tubes being provided with ports or openings 12 located a suitabledistance below the top plate 11. Valves 13 which operate by gravity toobstruct the ports l2 are hingedly supported adjacent to said ports, andsaid valves are provided with operating rods 1/1 extending through theports so as to lie in the path of the carbid tanks E and E2 which areaccommodated in the tubes D, D2. A flange or casing 15 of suitableconstruction extends upwardly from the top plate of the bell andsurrounds the tubes D, D2, the intermediate space being partially lledwith water which forms a seal when the flanged covers F, F2 are inposition, said covers being independently removable so as to constituteclosures for the tubes D, D2. Each of the covers is provided with ahandle 16 and with a pet cock 17, and suitable stop means in the natureof hooks 1S are provided to retain the covers in position against thepressure of the gas that is being generated within the tank. v The bellis also provided with tubes 19 of relatively small diameter extendingfrom the top plate 11 downwardly into the tank, said tube serving toguide the lifting rods or adjusting rods 20, each of which is providedwith a handle 21 to limit its downward movement, and each of which isalso provided with suitable adjusting notches 22, Q3 adapted to engage astop member 24 upon the top plate of the bell, whereby the lifting rodsmay be retained in adjusted position, said notches 22 being relativelynear the upper ends of the rods. The lower ends of the lifting rods 20are bent upwardly to form legs 25 extending within the tubes D, D2, saidlegs having terminal brackets 26 carrying anti-friction elements such aswheels or rollers 27 engaging the inner faces of the walls of saidtubes. The knees 28 formed by the angles produced by bending the legs 25to form the brackets 26 abut upon the bottom sides of the carbid tanksE, E2 which are thereby supported. Said carbid tanks have bottomapertures 29 to admit water from the outer tank 1 to the contents ofsaid carbid tanks.

rIhe tank 1 is provided near its upper edge with a filling spout 30communicating with an aperture 3l through which water may be admittedinto the tank, the normal water level being indicated in Figs. 1 and 2of the drawings. The bell C is also equipped with a sealing member 32consisting of a cylindrical tube closed at its upper end, the samesurrounding the limb 6 of the exhaust tube B which provides for theoverflow of gas to the atmosphere or to a storage tank, as hereinbeforestated.

rllhe supporting notches 22, 23, and the handles 21 of the rods 20 areso located that when the bell is at the lowermost position, as shown inFig. 1, and the rod 20 is lowered until the handle 21 rests upon the topplate of the bell. the carbid tank supported by the limb of such rodwill be submerged., as shown at E2 in Fig. 1. Vhen the rod 2O is raisedto the first notch 22, the carbid tank will be supported slightly abovethe water level, as shown at E in Fig. 1. By lifting the rod unt-il itis supported by the second notch 23, the carbid tank will be elevated toa point where it may be readily reached and removed for the renewal of acharge, and this position has been indicated in dotted lines at E2 inFig. 1 and in full lines at E in Fig. 2, the latter figure showing thecarbid tank E2 lowered to the same position which is indicated in Fig.1, the bell C being, however, shown in a raised position indicating thegenerator to be partly filled with gas. Normally it is intended that thecarbid tanks shall occupy the relative positions shown in full lines inFig. 1. /Vhen one of the tanks is submerged, gas will be generated, thuslifting the bell with its attachments until both tanks are above thewater level. As the gas is being consumed, the lowermost carbid tankwill again become submerged, gas will be generated, and the bell willbecome elevated, and this operation will be repeated until the charge isexhausted. Should this occur afterV dark when it is not desirable toapproach the generator with a light, the generator may be restored toactive position by simply changing the position of the carbid tanks,lifting the one which contains the exhausted charge and lowering the onecontaining a fresh charge, when the operation of generating gas willcontinue uninterruptedly. To replace a charge of carbid in either tank,said tank is lifted by means of the lifting rod 2O until the secondnotch 23 of said tank engages the stop member 24, as will be seen at Ein Fig. 2. The pet cock 17 attached to the cover of said tank is thenopened, and the cover is removed, after which the tank may be liftedout, the spent contents emptied and a fresh charge inserted. The coverof the carbid tank is then replaced, and such tank is then lowered untilthe notch 22 of the supporting rod engages the stop member 2st, the petcock is closed, and the machine is again ready for operation. By thisarrangement it is obvious that the operation of recharging either carbidtank may be performed by daylight, it being understood that theproportions are such that the charge contained in one carbid tank willbe suiiicient to furnish a normal gas supply for twenty-four hours, orapproximately so.

Should the quantity of gas generated exceed the requirements of thesystem, the bell will be lifted until the lower end of the closuremember 32 reaches the water level or a point slightly above the waterlevel, when the surplus gas will escape through the tube B, thedischarge through said tube being automatically checked as soon as thebell descends suiiiciently to cause the lower end of the closure member32 to become obstructed by the water contained in the tank 1. In Fig. 5of the drawings has been illustrated a slightly modified form of thevent or safety tube which in this instance has been shown as consistingsimply of a tube 35 extending through the top plate 11 of the bell C,the lower end of such tube being so disposed as to reach the waterlevel, thus becoming unsealed when an eX- cess of gas is generated.Escaping gas may be conveyed through the tube C and any suitableconnections to the atmosphere or t0 a storage tank.

It will be observed that the valved openings 12 of the tubes D, D2 areso located that when the carbid tank contained in either of said tubesis lowered to its lowermost or to an intermediate position, the valve 13will be opened owing to the stem 14 being engaged by the wall of thecarbid tank, thus establishing communication between the interior of thetube and the space bounded by the outer tank, the bell and the waterline. Vhen either carbid tank is raised to the position at E in Fig. 2,for the purpose of renewing the charge, the valve will close by gravityand will be held closed by the pressure of gas within the generator,thus preventing escape or waste of gas while the carbid tank is beingremoved for the renewal of the charge.

Having thus described the invention, what is claimed as new, is

l. In a device of the character described, an outer tank, a bell movabletherein, tubes extending through the top of the bell and having ports,gravity valves supported adjacent to said ports, carbid tanks movable inthe tubes, means for supporting` said carbid tanks in upper, lower andintermediate positions, stems connected with the valves extendingthrough the ports and lying in the path of the carbid tanks to open thevalves when the tanks are in the lower or intermediate positions, andsealing covers for the tubes.

2. In a device of the character described, an outer water containingtank, a bell movable therein and having tubes extending therethrough,sealing covers for the tubes, carbid tanks movable in the tubes,auxiliary tubes depending from the top plate of the bell, adjusting rodsextending through said auxiliary tubes and having upturned limbs andterminal brackets, the latter carrying anti-friction members engagingthe walls of the tank containing tubes, said limbs serving to supportthe carbid tanks, and means supporting the rods at various adjustmentsto maintain the tanks in upper, lower and intermediate positions.

3. In a device of the character described, an outer water containingtank, a bell movable therein and having a tube extending through the topplate thereof, a valved port for the tube, a carbid tank adjustablysupported in the tube, means for sustaining the tank in variouspositions, and means connected with the valve and extending in the pathof the carbid tank whereby the valve will be opened when the said carbidtank is lowered, said valve being adapted to be seated by gravity whenthe tank is raised.

4. In a device of the character described, an outer water containingtank, a bell movable therein and having tubes extending therethrough,sealing covers for said tubes, valved ports upon said tubescommunicating with the interior space of the bell, carbid tanks movablein the tubes, means for adjusting the carbid tanks and for supportingthem in various positions, means connected with the port obstructingvalves whereby said valves may be unseated by lowering the tanks, aU-shaped vent tube extending through the wall of the water containingtank adjacent to the bottom thereof, said tube having one limb extendingwithin the tank and above the water level, and a closure member for saidtube connected with the bell and normally extending below the waterlevel, said U-shaped tube having a pet cock adjacent to the bendthereof.

In testimony whereof I aliix my signature in presence of two witnesses.

MELVIN S. MISIILER.

Witnesses:

TULLY I-I. GRAY, IDA M. HULL.

